Graphical Velocity Determination

AI Thread Summary
The discussion revolves around determining the initial velocity of a ball thrown on Planet Exidor, given its velocity at t=1.00 s. Participants emphasize using kinematic equations and the understanding that gravitational acceleration affects only the y-direction. The student expresses difficulty in solving the problem and has not made any progress. Suggestions focus on analyzing the trajectory and applying relevant physics concepts. The conversation highlights the importance of breaking down the problem using known values and equations.
mathewings
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Below is the first in a series of questions that build on one another; however I cannot solve this initial one. Any help is appreciated.

A physics student on Planet Exidor throws a ball, and it follows the parabolic trajectory shown. The ball's position is shown at 1.00 s intervals until t=3.00 s. At t=1.00 s, the ball's velocity is v=(1.95i+2.32j) m/s. Determine the ball's velocity at t=0.00 s. (Enter your answer in component form. Input the x-component first, followed by the y-component.)
 

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what have you done so far? any quess or attempts you have tried?
 
I've been thinking it over for some time. I can't get anywhere with it. I've done nothing.
 
look at your kinematic equations and remember acceleration due to gravity is only in the y direction.
 

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